1420320220 has 24 divisors (see below), whose sum is σ = 3253825008. Its totient is φ = 516480000.

The previous prime is 1420320197. The next prime is 1420320263. The reversal of 1420320220 is 220230241.

It is a junction number, because it is equal to n+sod(n) for n = 1420320194 and 1420320203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3227781 + ... + 3228220.

It is an arithmetic number, because the mean of its divisors is an integer number (135576042).

Almost surely, 2^1420320220 is an apocalyptic number.

1420320220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1420320220 is an abundant number, since it is smaller than the sum of its proper divisors (1833504788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1420320220 is a wasteful number, since it uses less digits than its factorization.

1420320220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6456021 (or 6456019 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1420320220 is about 37687.1360015589. The cubic root of 1420320220 is about 1124.0753475492.

Adding to 1420320220 its reverse (220230241), we get a palindrome (1640550461).

The spelling of 1420320220 in words is "one billion, four hundred twenty million, three hundred twenty thousand, two hundred twenty".